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Simora [160]
3 years ago
5

It is known that 10% of the calculators shipped from a particular factory are defective. What is the probability that exactly th

ree of five chosen calculators are defective
Mathematics
1 answer:
IRINA_888 [86]3 years ago
4 0

Answer:0.0081  or 0.81%

Step-by-step explanation:

The required probability is P(3,5,0.1)= C5 3 * p^3*q^2, where

C5 3=  5!/3/2=4*5/2=10

p is the probability that one randomly selected calculator is defective= 10%=0.1

q is the probability that one randomly selected calculator is non-defective.

q=1-p=1-0.1=0.9

So P(3,5,0.1)= 10*0.1^3*0.9^2=0.01*0.81=0.0081

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nevsk [136]

The area of the circle is 3.14 square millimeters

<h3>Calculating Area</h3>

From the question, we are to the area of the circle

The area of a circle can be determined by using the formula,

A = πr²

Where A is the area of the circle

and r is the radius of the circle

From the given information,

r = 1 mm

and π = 3.14

Putting the parameters into the equation, we get

A = 3.14 × 1²

A = 3.14 × 1

A = 3.14 mm²

Hence, the area of the circle is 3.14 square millimeters

Learn more on Calculating Area here: brainly.com/question/15673093

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3 0
1 year ago
With Big Phone Company, you pay $0.39 for the connection and $0.03 per minute
TEA [102]
The answer us D i think
3 0
3 years ago
Help with the step by step
Nataliya [291]

Step-by-step explanation:

First, distribute the -4 to the parenthesis:

24a-22=-4+24a

Add 22 to both sides:

24a-22+22=-4+22+24a

Simplify:

24a=18+24a

Subtract 24a from both sides:

24a-24a=18+24a-24a

Simplify:

0=18

hope this helps :)

4 0
3 years ago
Read 2 more answers
How do you solve the fraction 2 1/2 - 6
Slav-nsk [51]
You could easily change the 2 1/2 to a 2.5 and do 2.5-6=-3.5
8 0
3 years ago
I'll give u brianliest if you share the answer and how you got it
Bogdan [553]

Answer:a is 52    b is 65

Step-by-step explanation:

a:Write 65% as 65100.

65100 of 80 = 65100 × 80.

Therefore, the answer is 52. If you are using a calculator, simply enter 65÷100×80 which will give you 52 as the answer.

b: it is 65 because it is the same question but in reverse which still gives you the same answer.

Hope this helps

please give brainlyist

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3 years ago
Read 2 more answers
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